Irritable Bowel Syndrome Association The patient-led and patient-governed organization aims to educate IBS patients and to increase awareness about this and other functional gastrointestinal disorders. The site includes clinical trials, news, clinical tests and medications for IBS.

Crohn’s and Colitis Foundation of AmericaAlthough the foundation focuses on inflammatory bowel disease, which is not the same as IBS, it offers a variety of information on IBS, including an article detailing the differences between the two conditions.

American College of GastroenterologyInformation about gastroenterology for patients and physicians alike can be found here. It also includes many useful tools such as an online quiz to test your knowledge about IBS.

Rome FoundationThe Rome Foundation is a nonprofit organization whose goal is to improve the lives of people with functional GI disorders such as IBS. It supports activities to create scientific data and educational info to help diagnose and treat functional gastrointestinal disorders.

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